Home / 2,179.06-3,007.04-1,247.50

Finding the Fourth Proportional to 2,179.06, 3,007.04 and 1,247.50

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Solution

The fourth proportional to 2,179.06, 3,007.04 and 1,247.50 is: 1,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.06 : 3,007.04 = 1,247.50 : x
  2. Step 2: Convert to fraction form
    2,179.06/3,007.04 = 1,247.50/x
  3. Step 3: Cross multiply
    2,179.06x = 3,007.04 × 1,247.50
  4. Step 4: Simplify right side
    2,179.06x = 3,751,282.40
  5. Step 5: Solve for x
    x = 3,751,282.40/2,179.06
  6. Step 6: Final answer
    x = 1,721.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.